The owner of Linglong Villa, Thirteen Yan, had already withdrawn from the world, but Li Shaobai and Di Bafang found evidence of the murder in his room. However, Thirteen Yan had been poisoned for many years and had become a cripple. Shaobai found out that Qu Fang, Thirteen Yan's friend, was the real culprit. Qu Fang obeyed the Yaksha organization, poisoned, robbed and then framed Thirteen Yans.